[Problem] A lead time for providing a network service can be shortened. [Solution] A network service management apparatus 100 that uses resources included in a network functions virtualization infrastructure 140 to provide a network service includes an orchestrator 110 that defines resources that satisfy a resource requirement of a virtual network function constituting the network service and are allocated to the virtual network function, and reserves the resources, and a virtualized infrastructure manager 130 that secures the reserved resources, activates the virtual network function on the secured resources, and generates the network service. When the securing of the reserved resources fails, the orchestrator 110 re-reserves resources to replace the reserved resources, and the virtualized infrastructure manager 130 secures the re-reserved resources, and activates the virtual network functions on the secured resources.

[Problem] A lead time for providing a network service can be shortened. [Solution] A network service management apparatus 100 that uses resources included in a network functions virtualization infrastructure 140 to provide a network service includes an orchestrator 110 that defines resources that satisfy a resource requirement of a virtual network function constituting the network service and are allocated to the virtual network function, and reserves the resources, and a virtualized infrastructure manager 130 that secures the reserved resources, activates the virtual network function on the secured resources, and generates the network service. When the securing of the reserved resources fails, the orchestrator 110 re-reserves resources to replace the reserved resources, and the virtualized infrastructure manager 130 secures the re-reserved resources, and activates the virtual network functions on the secured resources.

A method implemented by a network element (NE) in a network receiving, by the NE, an advertisement comprising preferred path route (PPR) information describing a path from an ingress NE to an egress NE in the network, the PPR information comprising a PPR identifier (PPR-ID) and an attribute associated with a resource to be reserved on the PPR, transmitting, by the NE, the advertisement comprising the PPR-ID and the attribute associated with the resource to be reserved on the PPR to another NE in the network, and updating, by the NE, a local forwarding database to include the PPR information in association with the egress NE in response to the NE being identified in the PPR information.

A method implemented by a network element (NE) in a network receiving, by the NE, an advertisement comprising preferred path route (PPR) information describing a path from an ingress NE to an egress NE in the network, the PPR information comprising a PPR identifier (PPR-ID) and an attribute associated with a resource to be reserved on the PPR, transmitting, by the NE, the advertisement comprising the PPR-ID and the attribute associated with the resource to be reserved on the PPR to another NE in the network, and updating, by the NE, a local forwarding database to include the PPR information in association with the egress NE in response to the NE being identified in the PPR information.

Methods and apparatuses for transmitting data through a switch-based network in an in-vehicle communications network system. In an example transmission-based method, the method includes for a transmitter device generating, by a generator, a reservoir data stream (RSSj). The method also includes transmitting the reservoir data stream (RSSj) through the switch-based network. The method further includes, when a new data stream from the transmitter device to a receiver device is needed, replacing, by an injector, at least part of the reservoir data stream (RSSj) by a new data stream.

Embodiments of this application disclose a service resource preconfiguration method and device, and a system. The method includes establishing a first working path, sending a first path message from a first node to a second node, the first path message including an instruction to the second node to preconfigure a second channel resource; and preconfiguring the second channel resource based on the first path message. Fast automatic service recovery can be implemented, and fault recovery performance can be improved.

A device configured to receive a resource reservation request that identifies a user and a resource. The device is further configured to generate a resource allocation that includes an association between the user, location information for the resource, a resource identifier for the resource, and a token value. The device is further configured to associate the resource allocation with a time interval indicating a deadline for using the resource allocation. The device is further configured to receive a reservation verification request from a network device. The device is further configured to determine the location information for the network device is within a predetermined distance from the location information for the resource, to determine the resource identifier matches the resource identifier for the resource, and to determine a current time is within the time interval. The device is further configured to generate resource allocation instructions authorizing access to the resource.

A device configured to receive a resource reservation request that identifies a user and a resource. The device is further configured to generate a resource allocation that includes an association between the user, location information for the resource, a resource identifier for the resource, and a token value. The device is further configured to associate the resource allocation with a time interval indicating a deadline for using the resource allocation. The device is further configured to receive a reservation verification request from a network device. The device is further configured to determine the location information for the network device is within a predetermined distance from the location information for the resource, to determine the resource identifier matches the resource identifier for the resource, and to determine a current time is within the time interval. The device is further configured to generate resource allocation instructions authorizing access to the resource.

A computer chip, a method, and computer program product for providing phase reservations between processing nodes. A computer chip includes a plurality of processing nodes interconnected in an on-chip data transfer network configured in a circular topology. The processing nodes include reservation mechanisms managing reservations made by processing nodes with phase constraints. The reservation policy allows the processing nodes to make a reservation, for a given phase, in any phase window, only once per reservation window. A reservation window can be a bounded amount of time for when a node is guaranteed an opportunity to transmit at least one message. The reservation policy also prevents the processing nodes from making more than one reservation in a phase window. Once a reservation is granted, the corresponding message may progress on the bus unimpeded. Requestors attempting to transmit messages are blocked until the message is transmitted.

Techniques discussed herein can facilitate handshake procedures for Point-to-Multipoint (P2MP) communication in connection with various DSL (Direct Subscriber Line) technologies. Various embodiments can employ different methods of separation of signaling to arrange P2MP handshake procedures based on existing Point-to-Point (P2P) handshake procedures. Example embodiments can employ one of separation in frequency, separation in time, or separation in transmission power level.